Dumping-wagon.



2 SHEETS*SHEET 1.

Patented May 18 w .Q S Rls ww\s T. WRIGHT.

DUMPING WAGON.

APPLlcATlou man oec. 11. m2.

Witnesses THE NORRIS PETERS C0.. PHOTO-LITHO., WASHINGTON. D. C.

T. WRIGHT.

DUMPING WAGON.

APPLICATION FILED 020.17. 1912.

Patentd May 18, 1915.

2 SHEETS-SHEET?.

Attorneys THE NORRIS PETERS CO.. PHOTO-LITHO.. WASHINGTON, DV C` 50 modied formof mechanism wherein the UNITED srrEs Parar Enron.

THOMAsWRIGHT, 0E JEEsEY CITY, NEW JERSEY.

nUMPINe-WAGON.

Specicaton of Letters Patent.

Application led December 17, 1912. Serial No. 737,300.

T0 all 'whom it may concern:

Be it known that I, THOMAS WRIGHT, a

citizen of the United States, residing at y.Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Dumping-Wagon, of which the following isa specication.

This invention relates to dumping wagon of the back delivery type, the principal object ofthe invention being to provide a body adapted to be placed on motor trucks and which has means wherebya short quick dump of the body can be e'ected,simple and efficientV means vbeing provided for shifting said, body into and out of dumping position.

A further object isl to provide a dumping` wagon having normallyinactive rollers which are shiftable by the operator into or out of active position to provide means whereby when the rollersare inactive position, the body can be shifted readily into or out of dumping position and, when they are in inactive position, the body will rest upon the frame' of the wagon and thus beheld vation of a portion of a dumping wagon having the present improvements combined therewith, the body being shown lin its normal position, the kposition assumed -by said body when dumping, being indicated by dotted lines. Fig. 2 is a rear elevation of the parts shown in Fig. 1. Fig. 3 is a plan view of a portion of the i body actuating mechanism. Fig. 4 is a side elevation of one of the rollers and adjacent parts, one position of the roller beingindicated by dotted lines. Fig. 5 is a side elevation of a slightly rollers are connected to the body andthe rail 'on which the rollers travel is shiftable upwardly and downwardly to raise and lower the body relative to the frame.

` Referringto the figures by characters of hicle frame or chassis which can beof any standard construction and thestructure constituting the present invention is adapted to` be mounted upon this chassisr `This structure includes transverse bolsters'jB `which are arranged on the frame or chassis Patented May 18, 1915.

y reference A designates a portionof Ve- A and which constitute' supports for` railsy 1" f which extend longitudinally above the frame A and have .their rear ends curved'downw'ardly, as at 2 and-preferably secured, as at Y 3, to thesides of the-frame A. 'A shaft A- is the shaft projecting beyondthe `outer sides of the rails and being preferablyan# Vgular, as shown at 5,- so as to be engaged .and rotated by means ofa suitable crank,

not shown;

Secured to shaft 4 nearV each end thereof,

kjournaled upon the lower "edgeslof the rails i 1 and extends transversely-thereof, the ends isa small gear 6 arranged close to theouter face of the adjacent rail 1, each gear meshing with a rack bar 7 secured to an elongatedv yslide 8 mounted upon the outer side ofthe adjacent rail 1. Thisslide is held against the rail 1 by guide lugs 9 and 10, a single i 1 lug 9 being located directly above gear 6 while a pairof lugs 10 are arrangedon one side of rail 1 at a distance from lug 9 substantially equal to the length of the rack bar 7. A slot 11 is `formed in each slide close w tothe rack bar 7 and projecting into this slot is a connecting pin 12 extending win-` wardly from one `end of an elongated link 13, the otherfend of the link lbeing pivotally connected, as at 14, to a bracket 15.' The brackets 15 to which the two links `13are attached, are secured to the bottomyof theVV dumping body 16 ofthe wagon and adj acentl the sides of the body. `,Furthermore these brackets are not attached tothe center of the sides of the bottom but are Vattached to the bottom'at points between the rear end .ofthe bodyv and the transverse centerv thereof, 'the distance between the rear end of the body and the brackets 15 beingk slightly greater than one-third theV lengthl of the body.

It is to be understood that under normal conditions the body 16 vbears downwardly.` t

on therails 1.k vThe frictional engagement of the'bodywith the rails will'thus be suchA i' l as to prevent' the bodyl from shifting accif- `l1() dentally out of normal position. When, however, it is desire'd todump the body, itis of course necessary to lift the body out of frictional engagement with the parts thereunder. One means for elevating the body has been illustrated in Figs. S and t. This means includes a transverse shaft 16 adapted to be rotated in any suitable manner and provided with a gear 17 meshing with a larger gear 18 secured to a second transverse shaft 19. The shafts 16 and 19 are journaled upon the lower edge portions of the rails 1 and a small gear 2O is carried by shaft 19 adjacent the inner side of each rail 1 and is engaged by a rack bar 21. Each rack bar is pivotally connected, as at 22, to parallel bars 23 extending rearwardly adjacent the inner side of the rails 1, these bars 23 being connected, at desired intervals, by transverse "rods 24, each rod extending through both bars of each pair. Mounted on eac-h rod 24 and between the bars of each pair are rollers 25 and links 26 are connected to the inner sides of the rails 1 and are also connected to the rods 24. Thus it will be seen that when the rack bars 21 are shifted in one direction, they will push upon the bars 2.23 and cause the links-26 to swing upwardly about their fulcrums, thus elevating the rollers 25 above the upper edges of the rails 1 and into contact with the body 16 to elevate the body out of contact with the rails. By shifting the rack bars21 in the opposite direction, the rollers 25 will be swung downwardly into position below the upper edges of the rails 1 and the body 16 will therefore be lowered into contact with the rails.

llVhen it is desired to dump the body 16, the operator rotates shaft 16 by any suitable means provided for that purposer and as this shaft is provided with a small gear 17 which meshes with a large gear 18, it will be apparent that considerable leverage will thus be obtained so that shaft 19, when rotated, will cause gears 20 to actuate the rack bars 21 and thus push against all of the links 26 through bars 23. The power thus obtained will be sufficient to elevate the body 16 out of contact with the rails 1. After the rollers 25 have thus been brought to active posit-ions, shaft 5 is rotated in one direction and the gears 6 thereon will push the rack bars 7 rearwardly, thus causing the slide 8 to also move rearwardly. After the center of the body passes the point indicated at a in Fig. 1, said body will begin to swing downwardly upon the curved portions 2 of the rails 1 so that a short quick dump of the body is thus effected.

ylVhen the body reaches dumping position, the slides 8 move into recesses 27 formed in lthe sides of the rails 1 near the curved pormovement of the shaft 5 so as to cause the gears 6 to pull on the rack bars 7. The body will swing downwardly onto the rollers 25 and be drawn forwardly, the rollers acting as anti-friction devices for facilitating such movement. As soon as the body has been brought forward to its initial position, the rollers 25 are lowered in the manner hereinbefore described, thus permitting the body to gravitate onto the rails 1.

`While it is preferred to have the rollers mounted in the manner hereinbefore described, it is to be understood, that if desired, the rollers, shown at 28, can be mounted in brackets 29 ixedly connected to the body 30. These rollers bear downwardly on a track 30 supported by links 31 and rack bars 32 are connected to the track and are engaged by gears 33 corresponding with the gears 2O hereinbefore described. Thus it will be seen that by shifting the rack bars in one direction, the track 30 will be elevated so as thus to lift the body out of contact with the rails 1. Vllhen the rack bars are shifted in the opposite direction, the track will be lowered and the body 30 thus permitted to gravitate .onto the rails 1.

Especial importance is attached to the fact that, in the present structure, the body, while dumping, does not swing about a fixed pivot but rolls along the downwardly curved rear terminals of the rails 1, this action resulting in a short quick dump which is much more desirable than a dump such as is effected where the body swings about a fixed pivot.

As hereinbefore stated the present improvements are in the form of an attachment to be applied to the chassis of a truck already constructed. In the structure shown, for example, in Fig. 5, all parts of the mechanism including the means for elevating the body 30 are carried by the rails 1. While this is not true of the structure shown in Figs. 1, 2, 3 and L1, the pivots of the links 26 being shown connected to a chassis A, it is to be understood that this connection can be effected readily or, if desired, a bracket such as shown at '29 in Fig. 5 may be employed and the links 26 connected to the bracket instead of `tothe chassis A.

What is claimed is 1. A dumping attachment for trucks, including` rails having downwardly curved spaced rear terminals adapted to lap the sides of and be secured to the chassis of a truck, means extending transversely under the rails for engaging said chassis to support the rails, a body normally bearing downwardly on the rails, gearing supported by the rails and below the upper edges thereof, means operated by the gearing and connected to the body kfor shifting said body longitudinally of the rails in both directions, and A:means carried solely by said rails for n each slide, a shaft journaled upon the rails,

. means revoluble With the shaft'and engagtaneously in the direction of the length ofv the rails, a link slidably and Divotally oon- 15 neoted to each slide, and a` dumping body normally bearing upon the rails, said links being pivotally connected to the body. v

In testimony that I claim the foregoing as .myy oWn, I have hereto afxed my signaturev 20 in the presence of tWo Witnesses. i

l THOMAS WRIGHT.

Witnesses: u Y

T. EUGENE' WRIGHT,

JEREMIAH F. GALIoomo.v

lifting the body oil of the rails to facilitate the longitudinal movement of the body.

2. An attachment for the chassis of a motor vehicle, said attachment including railsl having their rear ends turned down- Wardly and adaptedto be Secured to the rear portion of a chassis insertible therebetween, a slide upon the outer side of each rail, guide lugs outstanding from` the rails for holding the slides tothe rails, a rack bar carried by ing the racks for shifting the4 slides simul- C'opies of this patent may.` bevobtained for ve cents-each, by addressing the f Commissioner of'latents,

l Y Washington, D. C. 

